there should be a box to allow you to enter figures for the margins in the setup print job bottom margin etc put a figure in here usually centimetre or millimetres adjust untill your perfect print test page
Find the setup box ! might find it the drop down menu s at the top of the page good luck!

What application are you using (w/ the document)? Margins sound like the problem. If you have changed any bottom or top margin, or added a footer or header, it may have altered the overall option on top of page.